Home / 139,752,029.63-192,872,152.01-84,015,494.21

Finding the Fourth Proportional to 139,752,029.63, 192,872,152.01 and 84,015,494.21

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Solution

The fourth proportional to 139,752,029.63, 192,872,152.01 and 84,015,494.21 is: 115,950,009.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,752,029.63 : 192,872,152.01 = 84,015,494.21 : x
  2. Step 2: Convert to fraction form
    139,752,029.63/192,872,152.01 = 84,015,494.21/x
  3. Step 3: Cross multiply
    139,752,029.63x = 192,872,152.01 × 84,015,494.21
  4. Step 4: Simplify right side
    139,752,029.63x = 16,204,249,170,046,316
  5. Step 5: Solve for x
    x = 16,204,249,170,046,316/139,752,029.63
  6. Step 6: Final answer
    x = 115,950,009.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.